lwt_len_hist.sh 1.0 KB

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  1. #!/bin/bash
  2. # SPDX-License-Identifier: GPL-2.0
  3. NS1=lwt_ns1
  4. VETH0=tst_lwt1a
  5. VETH1=tst_lwt1b
  6. TRACE_ROOT=/sys/kernel/debug/tracing
  7. function cleanup {
  8. # To reset saved histogram, remove pinned map
  9. rm /sys/fs/bpf/tc/globals/lwt_len_hist_map
  10. ip route del 192.168.253.2/32 dev $VETH0 2> /dev/null
  11. ip link del $VETH0 2> /dev/null
  12. ip link del $VETH1 2> /dev/null
  13. ip netns exec $NS1 killall netserver
  14. ip netns delete $NS1 2> /dev/null
  15. }
  16. cleanup
  17. ip netns add $NS1
  18. ip link add $VETH0 type veth peer name $VETH1
  19. ip link set dev $VETH0 up
  20. ip addr add 192.168.253.1/24 dev $VETH0
  21. ip link set $VETH1 netns $NS1
  22. ip netns exec $NS1 ip link set dev $VETH1 up
  23. ip netns exec $NS1 ip addr add 192.168.253.2/24 dev $VETH1
  24. ip netns exec $NS1 netserver
  25. echo 1 > ${TRACE_ROOT}/tracing_on
  26. cp /dev/null ${TRACE_ROOT}/trace
  27. ip route add 192.168.253.2/32 encap bpf out obj lwt_len_hist_kern.o section len_hist dev $VETH0
  28. netperf -H 192.168.253.2 -t TCP_STREAM
  29. cat ${TRACE_ROOT}/trace | grep -v '^#'
  30. ./lwt_len_hist
  31. cleanup
  32. echo 0 > ${TRACE_ROOT}/tracing_on
  33. exit 0